This study intended to identify the staff nurse's activity in general hospital, where its Hospital Information System is well established and Electronic Nursing Record System was being used for 2 years.

Procedure was done with the following steps; In the first step, nursing activity time was analysed by checklist, which 28 nurses filled out by themselves. The group interview was followed.

During the day shift, the direct nursing activities took 37.04%, indirect nursing 40.74%, ward management 18.52% and personal time 3.70% respectively. In evening shift, nurses used 29.41% on direct nursing, 45.10% on indirect nursing, 19.61% on ward management and 5.88% on personal time. In night shift, direct nursing took 17.91%, indirect nursing 46.27%, ward management 17.91% and personal time 11.98%. The group interview reported the differences in nursing activities which recognized by the included staff nurses after the introduction of ENR; speed and convenience in working, the correctness and speed of recording, reduction of indirect nursing time including recording time and increase of direct nursing time and patient education.

The introduction of HIS including ENR system was verified to be effective on improvement of nursing quality, by bringing reduction of indirect nursing time and increase of direct nursing time.